Filter



Patented Mar. 7, |899. H. A. VEAZIE.

FILTER.

(Application tiled Nov. 29, 1898.)

(No Modal.)

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HENRY AUGUSTUS VEAZIE, 0F NEW ORLEANS, LOUISIANA.

FILTER.

SPECIFICATION forming part of Letters Patent No. 620,621, dated March'7, 1899.

Application filed November 29, 1898. Serial No. 697,781. (No model.)

To all whom, it' may concern:

Be it known that I, HENRY AUGUSTUS VEA- ZIE, a citizen of the UnitedStates, residing at New Orleans, in the parish of Orleans and State ofLouisiana, have invented new and useful Improvements in Filters, ofwhich the following is a specification.V

My invention relates to iilters; and it consists in the peculiar andadvantageous construction hereinafter described, and particularlypointed out in the claims appended.

In the accompanying drawings, Figure lis a vertical section ofmyimproved filter. Figs. 2 and 3 are transverse sections taken in theplanes indicated by the broken lines 2 2 and 3 3, respectively, of Fig.l.

Referring by' letter to the said drawings, A is the upright cylindricalcasing of my improved lter, and B are su pporting-legs,which areconnected to the side of the casing and extend outwardly and thencedownwardly from the same for a purpose presently described. The casing Ais preferably cast in one piece and provided at its lower and upper endswith outwardly-directed flanges a. It is valso provided at its lower andupper ends with heads C D, the said heads being detachably connected tothe flanges a by bolts and nuts or other suitable means and theconnections being rendered water-tight by gaskets b, interposed betweenthe heads and lianges after the manner shown.

E is a water-supply pipe which leads from a pump or other source ofsupply and is let into the casing A adjacent to the lower end thereof.

F is an eduction-pipe which communicates with the interior of the casingadjacent to the upper end thereof and is designed to conduct clarifiedwater from the filter to a stand-pipe, tank, or other receptacle, and Gis a pipe which is designed for the withdrawal of mud or other sedimentfrom the cylinder. The pipe G is of necessity provided with a suitablevalve c, and the pipes E F are by preference provided with similarvalves, so as to permit of the iniiow and outflow of water being stoppedwhen desired. 'The pipe G is preferably arranged in the same orapproximately the same horizontal plane as the pipe E and at an oppositepoint to said pipe E, and consequently when the valve of pipe F isclosed and those of the pipes E G opened the head of water from the pumpor other source of supply will quickly wash all of the mud and othersediment that is collected in the lower portion of the casing andthrough the pipe G.

The filtering material may be of any suitable kind, although I prefer toemploy a layer of charcoal ofinterposed between two layers of sand d andseparated from the same by pieces e of felt', canvas, or other suitablematerial. This iltering material is placed and held between twoforaminated diaphragms II I and is preferably separated from thediaphragms by pieces f of felt, canvas, or other suitable material. Itis designed to be introduced into the casing through an upper manhole gand removed when necessary through a lower manhole 72,. When desirable,however, it may be removed from the lower end of the casing, as will bepresently described.

The lower diaphragm I-I is connected to and supported by legs i', whichrest on the lower head C of the casing, and hence it will be seen thatwhen the head C is disconnected from the casing the diaphragm, as wellas all the superposed layers of filtering material, will drop out of thelower end of the casing. In this way the lower diaphragm may be readilyremoved to be cleared of collected sediment, and the old filteringmaterial may be discharged from the casing into a receptacle placedbetween the legs B to receive it.' It Y follows from this that the lowermanhole h is not essential, and as the upper head D is removable theupper manhole g is also not essential. I prefer, however, to provide thesaid manholes for the convenient introduction and removal of filteringmaterial when it is not expedient to remove the heads C D.

It is desirable to hold the filtering material under pressure, and Ihave provided an improved construction for this purpose which isadvantageous because it precludes leakage at the upper end of thecasing. This construction comprises the diaphragm I, having a threadedaperture t' and a peripheral notch j, a vertically-disposed spline k,which may be and preferably is formed integral with the casingA and isdesigned in conjunction with the notch j of the diaphragm to hold saiddiaphragm against rotation and yet permit it to freely move up and down,and va hand-screw IOO J, which engages the aperture z' of the daphragmand takes through a suitable stuffingbox Z on the head D. Thishand-screw J has a suitable handle m at its upper end and is providedbelow the head D with a stop n, which, bearing against the under side ofthe head, is adapted to hold the screw against endwise movement and yetnot interfere with its turning.

By turning the hand-screw in one direction the diaphragm I is moveddownwardly to compress the ltering material, and by turning the screw inthe opposite direction the diaphragm is raised to loosen the material.By reason of the construction described the diaphragm may be very easilydepressed and raised through the medium of the screw J withoutdisconnecting any part of the lter and leakage at the point where thescrew takes through the head D is absolutely prevented. This renders myimproved construction superior to those constructions in which theadjusting-screws of the diaphragms take through threaded apertures inthe heads and in which there is always more or less leakage at suchpoints, especially in those casesl in which the water enters the filterunder a strong head.

K is a cock through the medium of which water may be drawn from the lterwhenever it is desired to ascertain the condition of the water.

It will be appreciated from the foregoing that my improved filter whilevery simple and cheap is highly efficient in operation and is calculatedto quickly and thoroughly filter and clarify the water which passesthrough it. It will also be appreciated that the sediment collected atthe lower end of the casing may be readily removed by simply closing thevalve of pipe F and opening the valve of pipe G, that the lowerdiaphragm and all of the filtering materials may be readily dischargedfrom the casing into a receptacle placed to receive them, and that theupper diaphragm may be adjusted without liability of leakage at theupper end of the casing, all of which are material advantages.

Having thus described my invention, what I claim isl. In a filter, thecombination of a casing having an interior spline disposed in thedirection of its length and also having a head provided with astuiiing-box, a diaphragm arranged in the casing, a second diaphragmmovable toward and from the rst-named diaphragm and having ascrew-threaded aperture and also having a peripheral notch receiving thespline of the casing, and ahandscrew arranged in the stuffing-box of thecasing and having the lower threaded portion taking through the threadedaperture of the movable diaphragm and also having the stop arranged tobear against the inner side of the casing-head, substantially asspecified.

2. In a filter, the combination of an upright cylindrical casing havingan outwardly-directed flange at its lower end, ahead detach ablyconnected to said flange, supportingdegs connected to and extendingoutwardly from the side of the casing and depending below the lower endof said casing so as to permit of a receptacle being placed below thesame, a removable forarninated diaphragm arranged in the casing andhaving supports resting on the removable head, an upper foraminateddiaphragm, and means for moving the upper diaphragm so as to compressltering material between it and the lower diaphragm, substantially asspecified.

3. In a filter, the combination of an upright cylindrical casing havingan outwardly-directed iiange at its lower end, a head detachablyconnected to said flange, supporting-legs connected to the side of thecasing and depending below the lower end thereof, a removableforaminated diaphragm arranged in the casing and having supports restingon the removable head, an upper foraminated diaphragm, means for movingthe upper diaphragm to compress filtering material be' tween it and thelower diaphragm, a valved water-supply pipe connected with the casingadjacent to the lower end thereof, a valved eduction-pipe for waterconnected with the casing adjacent to the upper end thereof, and

HENRY AUGUSTUS VEAZIE.

Vitnesses:

JACOB J. DININONE, Jr., OSCAR STR-EETER.

IOO

